Year Percent of GDP 2004-01-01 26.5155191318799 2005-01-01 24.9578267504095 2006-01-01 26.6073918725319 2007-01-01 26.2582268988984 2008-01-01 22.8196326150549 2009-01-01 29.0909126710322 2010-01-01 26.1051941705010 2011-01-01 23.8336916590901 2012-01-01 29.1145906003771 2013-01-01 33.2600224569092 2014-01-01 35.9257454216242 2015-01-01 34.8165374459083 2016-01-01 34.1741707600496 2017-01-01 30.4402377115053 2018-01-01 30.4079952822600 2019-01-01 31.1448862911141